It has taken me a year to figure out how the BB Z10 syncs with Outlook. Very simple. When you enter calendar information you need to be in the calendar that set to link with Blackberry Link and not your local calendar. When you set up Blackberry link with your computer it creates a new calendar. If you have BB Link on more that one computer it will create a calendar for each. Hopefully this will help if you have not returned your phone.